Pyroxylin



i onN A. MocLELnAND, or met mm, KEsr cK-r.

,PYRQXYLINE F AsRicQ To all whomtt may concern: 1

Be it known that 1, JOHN A. MCGLELLAND,

, of the city of Louisville, inthe county;of Jefi'erson'and State of Kentucky, have-invented anew and Improved Pyroxyline Fabric,'of

whichthe following is-a specification.

: The compound produced by treating vege- .sponding parts in table fiber with acid, and commonly known as pyroxyline compound, is largely used in verythin sheets fo'r'various purposes-natur- -instance, in the manufacture of collars andcufls. ,Where such thin sheets are folded and often unfolded or turned back-as, for example, in the folded parts otco1lars--the'pyroxyline soon breaks in thefold unless re-enforced in some way. To obviate this defect articles have been made with cloth covered-with pyroxyline compound; but this is objectionable,

' because the prepared cloth when doubled or folded is of very considerable thickness;

' The object of my invention is to provide a fabric which shallhave greater-strength, yet.

be very little, if any, thicker, than sheets of pyroxyline alone, and thinner than sheets of"- cloth covered with pyroxylinecan' be made.

To this end my invention consists in a fab-. ric composed of a sheet or sheets of pyroxyline compound, and threads, filaments, or

; fibers embedded therein, and all extending in .7

I th'ussecure'a fabric having v c the necessary strength in one; direction in which. greater strength may be required, and

but-little, if any, thicker than thethreads, fil'aone direction.

ments, or fibers used.

.In the accompanying drawing Figure 1 represents a. piece ofmy improyed fabric. 'Fig,

2 is a'section transverse to the length of the fibers of a small'portion .of the fabric largely magnified; and. Fig.3 representsa view, similar toFig. 2, of a-piece of aii'aloric ofslightlydifi'erent formation, but also embodying my 'invention.

Similar letters of reference desigiiate corre all the figures.

A designates a piece of my improved fabric,

which is composed of a sheet of pyroxyline compound and threads in, embeddedin'the pyroxyline and extending in one direction only in theIslieet. These threads maybe bf very fine cotton twist or cotton yarn, oriof any other vegetable fiber, ofi a niniaI fiber, such as hair,

able material, and they-extend parallel with each other, and may be placed at any desired distance. .The fibers, arehere shown as and may be placed at a distance apart about equal' to the diameter of the fibers.

- manuen- It may be made in large quantities by taking a sufficient number of threads, strands, or yarn 'or filaments from a beam or spools and conducting them through a reed, whereby they are kept at a'p'roper distance apart, and from which. theypass between two pressurerollers arranged adjacent thereto. The sheets of pyroxyline previously produced are fed between the-said-ro'llers, and as they pass with tweenthe-rollers the threads, strands, fibers, or filaments are embedded into the sheets of pyroxyline, adhesive properties of the compound. By the pressure'.;of the rollers the fibers a will be forced into one face bf the sheet, and on one side will beayery thin covering of pyroxyline flattened, so that they add very little, it' any, perceptible thickness to the sheet.-

roxyline greatly magnified in embedded. 1

which case the fibers a will be covered equally with pyroxyline b on both sides of thevfabric, as shown mag'nified in Fig.- 3.

.strong without being too thick,

ening the folds in collars made of pyroxyline, for. use in the binding of books, pamphlets, &c.,.for' joining the portions ofl sectional or folding maps or plates in books, for the sweat .wool, leather, or intestines, or of other suit-- Thisfabricmaybe made in any desirable and are secured to them by thefah'c composed ofa single sheet of and fibers or-threadsis represented Fig. 3, in which b desi'ghates thepy'roxyline ingwhich the fibers are Instead of sheetsof pyroxyline being fed betweenJthe rollers on one side of the fibers, sheets may be fed through on both. sides, in v used for strength= part of Letters Patent No. 271,493, dated ;8Q,'i8 8 3.- Application filedOctoher 5,1882. mmunethe threads, strands, fibers, or filaments be-.

over allfthe threads, while on the other side the pyroxyline will be just flush with the fibers. 'In the pressing operation th-fiberslare also This fabric, when composed of fibers embedded betweengand in two sheets of pyroxyline, is water-proof on both sides, and amply.

or fibers embedded therein, and extending all hands of hats, and for making or re-enforoing in the same direction, substantially as herein other articles where the material is required to be thin, strong, and Water-proof. described.

What I claim as my invention, and desire to J. A. MOULELLAND. 5 secure by Letters Patent, is- Witnesses:

The fabric composed of a sheet or sheetso CHARLES W. WHITE, pyroxyline compound and threads, filaments, M. S. THOMPSON. 

